Spyglass telescope

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This small Galilean telescope has a tapering ebony barrel, a single brass draw tube and ivory mounts for the two lenses.

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ID:	ZBA4521
Collection:	Astronomical and navigational instruments
Type:	Spyglass telescope
Display location:	Not on display
Creator:	Unknown
Date made:	19th century
Credit:	National Maritime Museum, Greenwich, London
Measurements:	Length: 87mm (closed), 118mm (focused, approx.); Diameter: 58 mm (max)